root 4.03 and shared memories (TMapFile)

Hello, I'm using root-4.03/03 on linux Fedora Core-3 (gcc 3.4.2 20041017).

I'm trying to use the TMapFile class as described in the root tutorials (see attached macros). These macros work correctly with root-3.10/02 on Scientific Linux-3.03 (gcc 3.2.3 20030502), but only if I use the "rootn.exe" executable instead of "root".

When I try to run the producer on root-4.03/03 I obtain the output reported in the end of this message (complete stack trace). I tried to comment the line "mfile->Update();" in the producer source code and the producer runs, but the consumer can't find anything inside the "mapfile".

I thank you in advance for you help, cheers Diego

root [0] .x Producer1.C++
Info in <TUnixSystem::ACLiC>: creating shared library
/home/finuda/root_tests/SharedMemories/./Producer1_C.so
mfile is: 0xf5879008
Memory mapped file: hsimple.map

Title:                Demo memory mapped file with histograms
Option:               CREATE
Mapped Memory region: 0xf5875000 - 0xf588e000 (0.10 MB)
Current breakval:     0xf587d000
Object               Class                Size
hpx                  (null)               0
hpxpy                (null)               0
hprof                (null)               0

• Break *** illegal instruction Generating stack trace...
  /usr/bin/addr2line: 'rootn.exe': No such file
  /usr/bin/addr2line: 'rootn.exe': No such file
  0xf588fa26 in <unknown function> 0xf588fb40 in <unknown function> 0xf67cd506 in G__call_cppfunc + 0x264 from
  /usr/local/fndprg/root/lib/libCint.so
  0xf67bc313 in G__interpret_func + 0x7ac from
  /usr/local/fndprg/root/lib/libCint.so
  0xf679f953 in G__getfunction + 0x1bd5 from
  /usr/local/fndprg/root/lib/libCint.so
  0xf6795931 in G__getitem + 0x656 from
  /usr/local/fndprg/root/lib/libCint.so
  0xf679420e in G__getexpr + 0x834e from
  /usr/local/fndprg/root/lib/libCint.so
  0xf678bb6b in G__calc_internal + 0x2c8 from
  /usr/local/fndprg/root/lib/libCint.so
  0xf67f2598 in G__process_cmd + 0x22dc from
  /usr/local/fndprg/root/lib/libCint.so
  0xf6af13b1 in TCint::ProcessLine(char const*, TInterpreter::EErrorCode*) + 0xaf from /usr/local/fndprg/root/lib/libCore.so 0xf6af14bc in TCint::ProcessLineSynch(char const*, TInterpreter::EErrorCode*) + 0x46 from
  /usr/local/fndprg/root/lib/libCore.so
  0xf6a48c42 in TApplication::ProcessFile(char const*, int*) + 0x6fa from
  /usr/local/fndprg/root/lib/libCore.so
  0xf6a484cd in TApplication::ProcessLine(char const*, bool, int*) + 0x623 from /usr/local/fndprg/root/lib/libCore.so 0xf5f1ef30 in TRint::HandleTermInput() + 0x234 from
  /usr/local/fndprg/root/lib/libRint.so
  0xf5f1dbbe in TTermInputHandler::Notify() + 0x24 from
  /usr/local/fndprg/root/lib/libRint.so
  0xf5f1f3ac in TTermInputHandler::ReadNotify() + 0x12 from
  /usr/local/fndprg/root/lib/libRint.so
  0xf6b96ae6 in TUnixSystem::CheckDescriptors() + 0x152 from
  /usr/local/fndprg/root/lib/libCore.so
  0xf6b959ec in TUnixSystem::DispatchOneEvent(bool) + 0x184 from
  /usr/local/fndprg/root/lib/libCore.so
  0xf6ab13e2 in TSystem::InnerLoop() + 0x18 from
  /usr/local/fndprg/root/lib/libCore.so
  0xf6ab1382 in TSystem::Run() + 0x7a from
  /usr/local/fndprg/root/lib/libCore.so
  0xf6a48d74 in TApplication::Run(bool) + 0x32 from
  /usr/local/fndprg/root/lib/libCore.so
  0xf5f1e96c in TRint::Run(bool) + 0x364 from
  /usr/local/fndprg/root/lib/libRint.so
  0x08048d3b in main + 0x67 from rootn.exe 0x00868e33 in __libc_start_main + 0xe3 from /lib/tls/libc.so.6 0x08048c4d in TApplicationImp::ShowMembers(TMemberInspector&, char*) + 0x31 from rootn.exe Root >
• Break *** segmentation violation Generating stack trace... 0xf588e024 in <unknown function> Root > Segmentation fault
  • TEXT/PLAIN attachment: Producer1.C

  • TEXT/PLAIN attachment: Consumer1.C